PNEUMATIC TIRE - SUMITOMO RUBBER IND

Title:

PNEUMATIC TIRE

Document Type and Number:

WIPO Patent Application WO/2015/105087

Kind Code:

A1

Abstract:

Provided is an easily fitted pneumatic tire (2) whereby rim slipping and rim detachment is prevented. In this tire (2), a wire cross-section (26) has laminated therein at least two rows lined up in the substantially axial direction, in a cross-section cutting a core (16) of a bead (8) at a plane perpendicular to the circumferential direction thereof. The number of wire cross-sections (26) present in a first row is less than the number of wire cross-sections (26) present in a second row, when a row positioned on the innermost side in the radial direction among the rows is the first row and a row positioned second from the inside is the second row. An inside end (E2) of the second row is positioned further on the inside in the tire axial direction than a line perpendicular to the extension direction drawn from an inside end (E1) of the first row. In a cross-section cutting the core (16) at a plane perpendicular to the circumferential direction, an angle formed by the bottom side of the core (16) and the bead base line (BBL) is 2°-9°.

Inventors:

TATSUMI HIROYUKI

Application Number:

PCT/JP2015/050105

Publication Date:

July 16, 2015

Filing Date:

January 06, 2015

Export Citation:

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Assignee:

SUMITOMO RUBBER IND (JP)

International Classes:

B60C15/04; B60C15/00

Foreign References:

JP2001010311A	2001-01-16
JP2001206027A	2001-07-31
JP2007045375A	2007-02-22
JPS5587605A	1980-07-02
JP2004058823A	2004-02-26
JP2003072325A	2003-03-12
JP2003063217A	2003-03-05
JP2013151198A	2013-08-08

Other References: